Fix particle sizes, and add tools for comparing renderers

Particles: Direct3D 9's size limit evidently isn't the documented 64 pixels; unclamped (up to 2048) they match the client's renderer. A compare view shows the left half's scene over the right half, both renderers side by side; %TEMP%\t5de-renderer-view.txt switches views and %TEMP%\t5de-renderer-shaders\fixed_function.hlsl replaces the shaders while the client runs. The renderer process runs from a copy, so the program can be replaced meanwhile. The adapter recognizes only the textures and buffers it made (others reach the client renderer unchanged) and logs the others and render targets.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

renderer/shaders/fixed_function.hlsl

@@ -101,7 +101,7 @@ void vs_sprite(in SpriteInput input, out PSInput output)
 {
     float4 view = mul(mul(float4(input.Position, 1.0), g_World), g_View);
     float4 clip = mul(view, g_Projection);
-    float size = clamp(g_Viewport.y / max(length(view.xyz), 1e-4), 1.0, 64.0);
+    float size = clamp(g_Viewport.y / max(length(view.xyz), 1e-4), 1.0, 2048.0);
     float2 corner = float2((input.Corner & 1) != 0 ? 1.0 : -1.0, (input.Corner & 2) != 0 ? -1.0 : 1.0);
     clip.xy += corner * size / g_Viewport.xy * clip.w; // half the size each way, in clip space
     output.Position = clip;